Extralite UltraPulley Set
| Article number: | 010-02-04 |
| Availability: | In stock |
The Extralite UltraPulley Set redefines rear derailleur efficiency. Weighing as little as ~9.8g per set, these pulleys are engineered from self-lubricating hi-tech polymer with 7075-T6 aluminum inserts, ensuring a blend of low friction, stability, and extreme lightness.
Each pulley features Extralite’s twin-bearing system, using paired micro-ceramic bearings that virtually eliminate lateral play while achieving less than half the rolling resistance of conventional single-bearing pulleys. Low-friction 2RS seals keep contaminants out without adding drag.
Available in multiple tooth counts (11t–16t) and phased (PH) options for precise chain guidance, UltraPulleys are compatible with nearly all modern derailleurs—including Shimano, SRAM (Mechanical & AXS), and Campagnolo models. 100 % made in Italy, they represent over 15 years of continuous refinement in drivetrain tuning.
| Headset | Weight | SHIS | Stack |
| 11 - 11 | ~16g | Shimano 11/12 spd SRAM Red/XO Campy 10/11/12 |
8.0mm |
| 12 - 12 | ~30g | Shimano Di2 11/12 spd SRAM AXS Road Campy 12 spd |
10.5mm |
| 13 - 13 | ~14g | Shimano MTB XTR-XT 12 spd |
5.6mm |
| 12 - 12 PH | ~14g | SRAM XX1-XO1-GX 11 spd |
5.6mm |
| 12 - 14 PH | ~22g | SRAM XX1-XO1-GX Eagle 12 spd |
4.2mm |
| 14 - 16 PH | ~15g | SRAM XX1-XO1-GX Eagle 12 spd |
5.8mm |
| 14 - 16 PHB | ~26g | SRAM AXS Eagle XX SL-XX-XO (2023+) Shimano XTR Di2 12 spd |
5.5mm |
| Material | Polymer / 7075 T6 Aluminum | ||
| Bearings | Twin paired stainless/ceramic micro-bearings | ||
| Compatibility | Shimano, SRAM, Campagnolo (10–12 spd, AXS, Di2) | ||
| Chain Compatibility | 10–12 spd chains (except 2023+ AXS requires PHB model) | ||
